Ben Johnston (born 8 March 1992) is an Ireland international rugby league footballer who plays as a fullback, scrum-half or stand-off for Doncaster in Betfred League 1. He has previously played for the Castleford Tigers (Heritage № 930) in the Super League and the York City Knights in the Championship. Johnston has spent time on loan from York at the Dewsbury Rams in the Kingstone Press Championship and spent six seasons with Halifax in the Championship.